Coral reef restoration programmes are growing globally, with welfare implications for the reef fish and invertebrate species whose habitat is being rebuilt or protected.
Coral restoration creates habitat that directly improves welfare outcomes for reef-dependent species. Fish that return to restored sections of reef have improved access to shelter, food, and appropriate social environments. The welfare benefit is not just at species or population level but for individual animals whose quality of life depends on habitat quality. However, restoration cannot substitute for climate mitigation: reefs restored at significant cost can be bleached and killed within years by temperatures beyond their tolerance. The welfare of reef wildlife depends fundamentally on reducing the greenhouse gas emissions that cause thermal bleaching events, making coral reef welfare a direct climate advocacy issue.